Basic Check

As first step to troubleshoot issues we strongly recommended verify the ONAC version on each OpenNac component (Core, Analytics y Sensor), the used versions should be compatible, we also recommend use the latest released version. For verify the current version use:

rpm -qa | grep openNAC
../../../_images/VerifyingVer.png

For upgrade please review Opennac Upgrade.

For verify the resources with this commands in the terminal console.

  • Top command allows you to verify the system resources performance
top
  • This command allows you to verify the disk space.
df –h
  • For verify a specific process
ps –ef | grep "processName"
  • Display a treee of process
pstree
  • Shows statistics for CPU and input/output devices
iostat –x interval_in_seconds
  • For verify which port is being used by a specific service
netstat –nap | grep "processName"
  • Shows the last 10 lines for a specific file, -f option allows you to refresh the screen as the file grows
tail –f logFile
  • Allows to do a capture for a specific interface and specific port number.
tcpdump -i interface –n –nn port portNumber